After beating the game (1.00.3) I can say that this is probably one of the best Fan Games I've played.
Not "Megaman Fangame" but Fan Game in general. Despite having a few rough spots in level design(a bunch of instakill), some pretty strange bugs and (imo) a lack of Check Points in some places.
I never got frustrated with an insane difficulty spike because "the game was made for veterans of the series" which for some reason seems to be the philosophy most developers follow, it was a comfortably challenging ride from beginning to end and I love it!
I can put this along side the SNES X Trilogy, and if you get every game breaking bug fixed this may become my favorite X game. Good job and congratulations!